Brush spindle



Patented Mar. 3, 1925.

l UNITED STATES GEORGE L. MEYER AND GEORGE JOHN MEYER, OF MILWAUKEE, WISCONSIN.

BRUSH SPINDLE Application led July 5, 1921. Serial No. 482,586.

To all 'whom t may concern! Be it known that we, GEORGE L. N. MEYER and GEORGE J. MEYER, citizens of the United States, and residents of Milwaukee, in the county of Milwaukee and State of Wisconsin, have invented new and useful Improvements inBrush Spindles, of which the following is a description, reference being had .to the accompanying drawings, which are a part of this specification.

The invention rela-tes to improvements in bottle washing machines and more particularly to the brush spindle thereof.

Heretofore the spindles carrying'\ the brushes have consisted of a relatively rigid tube through which the wash Wateris conducted to the interior of the bottle, while i 'the spindle and brush are rotated at a high rate of speed. This high rate of revolution sets up a whipping or vibrating action in the spindle with the result that the tube soon crystallizes and has to be replaced. The present invention successfully overcomes this difficulty by providing a universal joint between the spindle and its rotating support permitting a limited movement of the spindle in all directions.

The invention further'consists in the several features hereinafter 's et forth and more particularly defined by claims at the conclusion hereof.

-In the drawings: Fig. 1 is a vertical sectional view through a device embodying the invention; Fig. 2 is an enlarged sectional view of the joint; Fig. 3 is a sectiontaken on the line 3-3 of Fig. 2, with the connecting ring removed; Fig. 4 is a sectional view similar to Fig. 2, showing a modified form of joint; Fig. 5 is a section taken on the line 5-5 of Fig. 4.

Referring to the drawings, the numeral 6 designates a. hollow tube or brush spindle having a threaded lower end and removable tubular tip 7 at .its upper end to which the brush 8 is loosely connected by a pin 9.

In Figs. 1 to 3, inclusive, the threaded end of the tube 6 fits int-o the threaded bore 10 of a joint member 11. This member 11 has a passage 12 communicating with the passage in the tube, a square portion 13, a sp erically curved end 14 and a spherically curved portion 15. A joint member 16 has a square recess 17 in which the square portion 13 is loosely mounted, a.` spherlcal recess 18 forming a seat for the end 14, a bore 19 communicating with the passage 12, and a threaded socket portion 2O having squared surfaces 21. rIlhe members 11 and 16 are operatively connected together by a flanged ring 22 threaded to engage the threaded upper end 23 of the member 16 and having curved flanges 24 engaging the curved portion 15 of the member 11. The joint thus formed permits the. tube swinging on the member 16 and allows the water to pass to the tube through the universal joint formed between the members 11 and 16 without danger of leakage. The square portions 13 and 17 provide means for limiting the. swinging movement of the tube 6.

In Figs. 4 and the threaded end of the tube 6 fits into the threaded bore 25 of a joint member 26. This member 26 has a atransversely extending projection 2') havj ing curved sides 30 and transverse opening 3l with flared ends. A oint member 32 has a transversely extending flat sided recess 33; a threaded socket 34 and a bore 35 extending from the recess 33 to the interior of the socket. he projection 29 of the member 2,6 fits into the recess 33 and has its curved sides 30 loosely contacting with the flat sides of said recess. A pin 36 on the member 32 passes through opening 31 andsecures the members together. A piece of flexible tubing 37, of rubber or other suitable material, fits over the members 26 vand 32 and a flange 38 on the member 26 prevents lslipage of this tubing. Water is free to pass rom the recess 33 to the space 28 and thence through the passage 37 to the tube. This construction also provides a water-proof universal joint connection between the tube and the joint member 32 whereby the tube has a limited universal swinging movement.

In each instance a tubular rota-ting member 39 is journalled in a bearin 40 and has a threaded end 41 adapted to t either the socket portion 20 or the socket 34. The jointed tube rotates with the member 39 'and the lower recessed ends of the members 16 and 32 have a bearin upon the top of the bearing 40. The mem er 39 is driven in any suitable manner.

We desireit to be understood that this inform or arrangement of parts exce t in so far as such limitations are specifi in the claims. j

What we claim in our invention is:

l. The combination, with a hollow rotatable member, of a hollow brush spindle movable with said member and having a positive drive universal joint connection therewith for limited universal movement with respect thereto to prevent crystallization of said spindle when subjected to high rotative speeds, said connection having a tight seal between the joint members.

v3. The combination of a hollow rotatable member, a hollow brush spindle, joint members respectively connected to said rotatable member and spindle and having communieating passages therewith, one of said joint members having a transverse slot therein,

the other of said members having a projection disposed in said slot and having limited universal movement therein, means operatively retaining the joint members together, and flexible tubing fitting over the joint members to provide a seal.

4. The combination of a hollow rotatable member, a hollow brush spindle, a joint member carried by the rotatable member having a transverse recess therein and a passage connecting said recess with the passage inA said member, a joint member having a passage therethrough communicating with the passage in the spindle and a projection loosely fitting in said recess, a pin carried b said first Ynamed jointed member passing tiirough an opening in said projection, said opening having flared ends, and flexible tubing fitting over the joint members to provide a seal.

5. The combination of a hollow rotatable member, a hollow brush spindle, joint members respectively connected'to said rotatable member and spindle and having communieating passages therewith, one of said joint members having an axially disposed recess atv one end thereof, the other of said members having a flat-sided projection fitting loosely in said 'recess and having a limited universal movement therein, means operatively retaining the joint members together, and means fitting over the joint members to provide a liquid-tight seal.'

6. The combination of a hollow rotatable member, a hollow brush spindle, joint members respectively connected to said rotatable member and spindle and having communieating passages therewith, one of said joint members having an axially disposed flatsided recess at one end thereof, the other of said members having a projection retained and fitting loosely in said recess and having a limited universal movement therein, and means fitting over the joint members to provide a liquid-tight seal.

ln testimony whereof we afiiX our signatures, in presence of two witnesses.

GEORGE L. N. MEYER. GEORGE JOHN MEYER. Witnesses:

HOWARD W. KoRTsELL, EUGENE P. MEYER. y 

